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      1 /******************************************************************************
      2  *
      3  *  Copyright (c) 2014 The Android Open Source Project
      4  *  Copyright (C) 2009-2012 Broadcom Corporation
      5  *
      6  *  Licensed under the Apache License, Version 2.0 (the "License");
      7  *  you may not use this file except in compliance with the License.
      8  *  You may obtain a copy of the License at:
      9  *
     10  *  http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  *  Unless required by applicable law or agreed to in writing, software
     13  *  distributed under the License is distributed on an "AS IS" BASIS,
     14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  *  See the License for the specific language governing permissions and
     16  *  limitations under the License.
     17  *
     18  ******************************************************************************/
     19 
     20 /*******************************************************************************
     21  *
     22  *  Filename:      btif_storage.c
     23  *
     24  *  Description:   Stores the local BT adapter and remote device properties in
     25  *                 NVRAM storage, typically as xml file in the
     26  *                 mobile's filesystem
     27  *
     28  *
     29  */
     30 
     31 #define LOG_TAG "bt_btif_storage"
     32 
     33 #include "btif_storage.h"
     34 
     35 #include <alloca.h>
     36 #include <base/logging.h>
     37 #include <ctype.h>
     38 #include <stdlib.h>
     39 #include <string.h>
     40 #include <time.h>
     41 
     42 #include "bt_common.h"
     43 #include "bta_hd_api.h"
     44 #include "bta_hh_api.h"
     45 #include "btif_api.h"
     46 #include "btif_config.h"
     47 #include "btif_hd.h"
     48 #include "btif_hh.h"
     49 #include "btif_util.h"
     50 #include "device/include/controller.h"
     51 #include "osi/include/allocator.h"
     52 #include "osi/include/compat.h"
     53 #include "osi/include/config.h"
     54 #include "osi/include/log.h"
     55 #include "osi/include/osi.h"
     56 
     57 /*******************************************************************************
     58  *  Constants & Macros
     59  ******************************************************************************/
     60 
     61 // TODO(armansito): Find a better way than using a hardcoded path.
     62 #define BTIF_STORAGE_PATH_BLUEDROID "/data/misc/bluedroid"
     63 
     64 //#define BTIF_STORAGE_PATH_ADAPTER_INFO "adapter_info"
     65 //#define BTIF_STORAGE_PATH_REMOTE_DEVICES "remote_devices"
     66 #define BTIF_STORAGE_PATH_REMOTE_DEVTIME "Timestamp"
     67 #define BTIF_STORAGE_PATH_REMOTE_DEVCLASS "DevClass"
     68 #define BTIF_STORAGE_PATH_REMOTE_DEVTYPE "DevType"
     69 #define BTIF_STORAGE_PATH_REMOTE_NAME "Name"
     70 #define BTIF_STORAGE_PATH_REMOTE_VER_MFCT "Manufacturer"
     71 #define BTIF_STORAGE_PATH_REMOTE_VER_VER "LmpVer"
     72 #define BTIF_STORAGE_PATH_REMOTE_VER_SUBVER "LmpSubVer"
     73 
     74 //#define BTIF_STORAGE_PATH_REMOTE_LINKKEYS "remote_linkkeys"
     75 #define BTIF_STORAGE_PATH_REMOTE_ALIASE "Aliase"
     76 #define BTIF_STORAGE_PATH_REMOTE_SERVICE "Service"
     77 #define BTIF_STORAGE_PATH_REMOTE_HIDINFO "HidInfo"
     78 #define BTIF_STORAGE_KEY_ADAPTER_NAME "Name"
     79 #define BTIF_STORAGE_KEY_ADAPTER_SCANMODE "ScanMode"
     80 #define BTIF_STORAGE_KEY_ADAPTER_DISC_TIMEOUT "DiscoveryTimeout"
     81 
     82 /* This is a local property to add a device found */
     83 #define BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP 0xFF
     84 
     85 // TODO: This macro should be converted to a function
     86 #define BTIF_STORAGE_GET_ADAPTER_PROP(s, t, v, l, p) \
     87   do {                                               \
     88     (p).type = (t);                                  \
     89     (p).val = (v);                                   \
     90     (p).len = (l);                                   \
     91     s = btif_storage_get_adapter_property(&(p));     \
     92   } while (0)
     93 
     94 // TODO: This macro should be converted to a function
     95 #define BTIF_STORAGE_GET_REMOTE_PROP(b, t, v, l, p)     \
     96   do {                                                  \
     97     (p).type = (t);                                     \
     98     (p).val = (v);                                      \
     99     (p).len = (l);                                      \
    100     btif_storage_get_remote_device_property((b), &(p)); \
    101   } while (0)
    102 
    103 #define STORAGE_BDADDR_STRING_SZ (18) /* 00:11:22:33:44:55 */
    104 #define STORAGE_UUID_STRING_SIZE \
    105   (36 + 1) /* 00001200-0000-1000-8000-00805f9b34fb; */
    106 #define STORAGE_PINLEN_STRING_MAX_SIZE (2)  /* ascii pinlen max chars */
    107 #define STORAGE_KEYTYPE_STRING_MAX_SIZE (1) /* ascii keytype max chars */
    108 
    109 #define STORAGE_KEY_TYPE_MAX (10)
    110 
    111 #define STORAGE_HID_ATRR_MASK_SIZE (4)
    112 #define STORAGE_HID_SUB_CLASS_SIZE (2)
    113 #define STORAGE_HID_APP_ID_SIZE (2)
    114 #define STORAGE_HID_VENDOR_ID_SIZE (4)
    115 #define STORAGE_HID_PRODUCT_ID_SIZE (4)
    116 #define STORAGE_HID_VERSION_SIZE (4)
    117 #define STORAGE_HID_CTRY_CODE_SIZE (2)
    118 #define STORAGE_HID_DESC_LEN_SIZE (4)
    119 #define STORAGE_HID_DESC_MAX_SIZE (2 * 512)
    120 
    121 /* <18 char bd addr> <space> LIST< <36 char uuid> <;> > <keytype (dec)> <pinlen>
    122  */
    123 #define BTIF_REMOTE_SERVICES_ENTRY_SIZE_MAX      \
    124   (STORAGE_BDADDR_STRING_SZ + 1 +                \
    125    STORAGE_UUID_STRING_SIZE * BT_MAX_NUM_UUIDS + \
    126    STORAGE_PINLEN_STRING_MAX_SIZE + STORAGE_KEYTYPE_STRING_MAX_SIZE)
    127 
    128 #define STORAGE_REMOTE_LINKKEYS_ENTRY_SIZE (LINK_KEY_LEN * 2 + 1 + 2 + 1 + 2)
    129 
    130 /* <18 char bd addr> <space>LIST <attr_mask> <space> > <sub_class> <space>
    131    <app_id> <space>
    132                                 <vendor_id> <space> > <product_id> <space>
    133    <version> <space>
    134                                 <ctry_code> <space> > <desc_len> <space>
    135    <desc_list> <space> */
    136 #define BTIF_HID_INFO_ENTRY_SIZE_MAX                                  \
    137   (STORAGE_BDADDR_STRING_SZ + 1 + STORAGE_HID_ATRR_MASK_SIZE + 1 +    \
    138    STORAGE_HID_SUB_CLASS_SIZE + 1 + STORAGE_HID_APP_ID_SIZE + 1 +     \
    139    STORAGE_HID_VENDOR_ID_SIZE + 1 + STORAGE_HID_PRODUCT_ID_SIZE + 1 + \
    140    STORAGE_HID_VERSION_SIZE + 1 + STORAGE_HID_CTRY_CODE_SIZE + 1 +    \
    141    STORAGE_HID_DESC_LEN_SIZE + 1 + STORAGE_HID_DESC_MAX_SIZE + 1)
    142 
    143 /* currently remote services is the potentially largest entry */
    144 #define BTIF_STORAGE_MAX_LINE_SZ BTIF_REMOTE_SERVICES_ENTRY_SIZE_MAX
    145 
    146 /* check against unv max entry size at compile time */
    147 #if (BTIF_STORAGE_ENTRY_MAX_SIZE > UNV_MAXLINE_LENGTH)
    148 #error "btif storage entry size exceeds unv max line size"
    149 #endif
    150 
    151 /*******************************************************************************
    152  *  Local type definitions
    153  ******************************************************************************/
    154 typedef struct {
    155   uint32_t num_devices;
    156   RawAddress devices[BTM_SEC_MAX_DEVICE_RECORDS];
    157 } btif_bonded_devices_t;
    158 
    159 /*******************************************************************************
    160  *  External functions
    161  ******************************************************************************/
    162 
    163 extern void btif_gatts_add_bonded_dev_from_nv(const RawAddress& bda);
    164 
    165 /*******************************************************************************
    166  *  Internal Functions
    167  ******************************************************************************/
    168 
    169 static bt_status_t btif_in_fetch_bonded_ble_device(
    170     const char* remote_bd_addr, int add,
    171     btif_bonded_devices_t* p_bonded_devices);
    172 static bt_status_t btif_in_fetch_bonded_device(const char* bdstr);
    173 
    174 static bool btif_has_ble_keys(const char* bdstr);
    175 
    176 /*******************************************************************************
    177  *  Static functions
    178  ******************************************************************************/
    179 
    180 static int prop2cfg(const RawAddress* remote_bd_addr, bt_property_t* prop) {
    181   std::string addrstr;
    182   const char* bdstr = addrstr.c_str();
    183   if (remote_bd_addr) {
    184     addrstr = remote_bd_addr->ToString();
    185     bdstr = addrstr.c_str();
    186   }
    187 
    188   BTIF_TRACE_DEBUG("in, bd addr:%s, prop type:%d, len:%d", bdstr, prop->type,
    189                    prop->len);
    190   char value[1024];
    191   if (prop->len <= 0 || prop->len > (int)sizeof(value) - 1) {
    192     BTIF_TRACE_ERROR("property type:%d, len:%d is invalid", prop->type,
    193                      prop->len);
    194     return false;
    195   }
    196   switch (prop->type) {
    197     case BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP:
    198       btif_config_set_int(bdstr, BTIF_STORAGE_PATH_REMOTE_DEVTIME,
    199                           (int)time(NULL));
    200       break;
    201     case BT_PROPERTY_BDNAME:
    202       strncpy(value, (char*)prop->val, prop->len);
    203       value[prop->len] = '\0';
    204       if (remote_bd_addr)
    205         btif_config_set_str(bdstr, BTIF_STORAGE_PATH_REMOTE_NAME, value);
    206       else
    207         btif_config_set_str("Adapter", BTIF_STORAGE_KEY_ADAPTER_NAME, value);
    208       break;
    209     case BT_PROPERTY_REMOTE_FRIENDLY_NAME:
    210       strncpy(value, (char*)prop->val, prop->len);
    211       value[prop->len] = '\0';
    212       btif_config_set_str(bdstr, BTIF_STORAGE_PATH_REMOTE_ALIASE, value);
    213       break;
    214     case BT_PROPERTY_ADAPTER_SCAN_MODE:
    215       btif_config_set_int("Adapter", BTIF_STORAGE_KEY_ADAPTER_SCANMODE,
    216                           *(int*)prop->val);
    217       break;
    218     case BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT:
    219       btif_config_set_int("Adapter", BTIF_STORAGE_KEY_ADAPTER_DISC_TIMEOUT,
    220                           *(int*)prop->val);
    221       break;
    222     case BT_PROPERTY_CLASS_OF_DEVICE:
    223       btif_config_set_int(bdstr, BTIF_STORAGE_PATH_REMOTE_DEVCLASS,
    224                           *(int*)prop->val);
    225       break;
    226     case BT_PROPERTY_TYPE_OF_DEVICE:
    227       btif_config_set_int(bdstr, BTIF_STORAGE_PATH_REMOTE_DEVTYPE,
    228                           *(int*)prop->val);
    229       break;
    230     case BT_PROPERTY_UUIDS: {
    231       uint32_t i;
    232       char buf[64];
    233       value[0] = 0;
    234       for (i = 0; i < (prop->len) / sizeof(bt_uuid_t); i++) {
    235         bt_uuid_t* p_uuid = (bt_uuid_t*)prop->val + i;
    236         memset(buf, 0, sizeof(buf));
    237         uuid_to_string_legacy(p_uuid, buf, sizeof(buf));
    238         strcat(value, buf);
    239         // strcat(value, ";");
    240         strcat(value, " ");
    241       }
    242       btif_config_set_str(bdstr, BTIF_STORAGE_PATH_REMOTE_SERVICE, value);
    243       break;
    244     }
    245     case BT_PROPERTY_REMOTE_VERSION_INFO: {
    246       bt_remote_version_t* info = (bt_remote_version_t*)prop->val;
    247 
    248       if (!info) return false;
    249 
    250       btif_config_set_int(bdstr, BTIF_STORAGE_PATH_REMOTE_VER_MFCT,
    251                           info->manufacturer);
    252       btif_config_set_int(bdstr, BTIF_STORAGE_PATH_REMOTE_VER_VER,
    253                           info->version);
    254       btif_config_set_int(bdstr, BTIF_STORAGE_PATH_REMOTE_VER_SUBVER,
    255                           info->sub_ver);
    256     } break;
    257 
    258     default:
    259       BTIF_TRACE_ERROR("Unknown prop type:%d", prop->type);
    260       return false;
    261   }
    262 
    263   /* save changes if the device was bonded */
    264   if (btif_in_fetch_bonded_device(bdstr) == BT_STATUS_SUCCESS) {
    265     btif_config_flush();
    266   }
    267 
    268   return true;
    269 }
    270 
    271 static int cfg2prop(const RawAddress* remote_bd_addr, bt_property_t* prop) {
    272   std::string addrstr;
    273   const char* bdstr = addrstr.c_str();
    274   if (remote_bd_addr) {
    275     addrstr = remote_bd_addr->ToString();
    276     bdstr = addrstr.c_str();
    277   }
    278   BTIF_TRACE_DEBUG("in, bd addr:%s, prop type:%d, len:%d", bdstr, prop->type,
    279                    prop->len);
    280   if (prop->len <= 0) {
    281     BTIF_TRACE_ERROR("property type:%d, len:%d is invalid", prop->type,
    282                      prop->len);
    283     return false;
    284   }
    285   int ret = false;
    286   switch (prop->type) {
    287     case BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP:
    288       if (prop->len >= (int)sizeof(int))
    289         ret = btif_config_get_int(bdstr, BTIF_STORAGE_PATH_REMOTE_DEVTIME,
    290                                   (int*)prop->val);
    291       break;
    292     case BT_PROPERTY_BDNAME: {
    293       int len = prop->len;
    294       if (remote_bd_addr)
    295         ret = btif_config_get_str(bdstr, BTIF_STORAGE_PATH_REMOTE_NAME,
    296                                   (char*)prop->val, &len);
    297       else
    298         ret = btif_config_get_str("Adapter", BTIF_STORAGE_KEY_ADAPTER_NAME,
    299                                   (char*)prop->val, &len);
    300       if (ret && len && len <= prop->len)
    301         prop->len = len - 1;
    302       else {
    303         prop->len = 0;
    304         ret = false;
    305       }
    306       break;
    307     }
    308     case BT_PROPERTY_REMOTE_FRIENDLY_NAME: {
    309       int len = prop->len;
    310       ret = btif_config_get_str(bdstr, BTIF_STORAGE_PATH_REMOTE_ALIASE,
    311                                 (char*)prop->val, &len);
    312       if (ret && len && len <= prop->len)
    313         prop->len = len - 1;
    314       else {
    315         prop->len = 0;
    316         ret = false;
    317       }
    318       break;
    319     }
    320     case BT_PROPERTY_ADAPTER_SCAN_MODE:
    321       if (prop->len >= (int)sizeof(int))
    322         ret = btif_config_get_int("Adapter", BTIF_STORAGE_KEY_ADAPTER_SCANMODE,
    323                                   (int*)prop->val);
    324       break;
    325     case BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT:
    326       if (prop->len >= (int)sizeof(int))
    327         ret = btif_config_get_int(
    328             "Adapter", BTIF_STORAGE_KEY_ADAPTER_DISC_TIMEOUT, (int*)prop->val);
    329       break;
    330     case BT_PROPERTY_CLASS_OF_DEVICE:
    331       if (prop->len >= (int)sizeof(int))
    332         ret = btif_config_get_int(bdstr, BTIF_STORAGE_PATH_REMOTE_DEVCLASS,
    333                                   (int*)prop->val);
    334       break;
    335     case BT_PROPERTY_TYPE_OF_DEVICE:
    336       if (prop->len >= (int)sizeof(int))
    337         ret = btif_config_get_int(bdstr, BTIF_STORAGE_PATH_REMOTE_DEVTYPE,
    338                                   (int*)prop->val);
    339       break;
    340     case BT_PROPERTY_UUIDS: {
    341       char value[1280];
    342       int size = sizeof(value);
    343       if (btif_config_get_str(bdstr, BTIF_STORAGE_PATH_REMOTE_SERVICE, value,
    344                               &size)) {
    345         bt_uuid_t* p_uuid = (bt_uuid_t*)prop->val;
    346         size_t num_uuids =
    347             btif_split_uuids_string(value, p_uuid, BT_MAX_NUM_UUIDS);
    348         prop->len = num_uuids * sizeof(bt_uuid_t);
    349         ret = true;
    350       } else {
    351         prop->val = NULL;
    352         prop->len = 0;
    353       }
    354     } break;
    355 
    356     case BT_PROPERTY_REMOTE_VERSION_INFO: {
    357       bt_remote_version_t* info = (bt_remote_version_t*)prop->val;
    358 
    359       if (prop->len >= (int)sizeof(bt_remote_version_t)) {
    360         ret = btif_config_get_int(bdstr, BTIF_STORAGE_PATH_REMOTE_VER_MFCT,
    361                                   &info->manufacturer);
    362 
    363         if (ret == true)
    364           ret = btif_config_get_int(bdstr, BTIF_STORAGE_PATH_REMOTE_VER_VER,
    365                                     &info->version);
    366 
    367         if (ret == true)
    368           ret = btif_config_get_int(bdstr, BTIF_STORAGE_PATH_REMOTE_VER_SUBVER,
    369                                     &info->sub_ver);
    370       }
    371     } break;
    372 
    373     default:
    374       BTIF_TRACE_ERROR("Unknow prop type:%d", prop->type);
    375       return false;
    376   }
    377   return ret;
    378 }
    379 
    380 /*******************************************************************************
    381  *
    382  * Function         btif_in_fetch_bonded_devices
    383  *
    384  * Description      Internal helper function to fetch the bonded devices
    385  *                  from NVRAM
    386  *
    387  * Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
    388  *
    389  ******************************************************************************/
    390 static bt_status_t btif_in_fetch_bonded_device(const char* bdstr) {
    391   bool bt_linkkey_file_found = false;
    392 
    393   LINK_KEY link_key;
    394   size_t size = sizeof(link_key);
    395   if (btif_config_get_bin(bdstr, "LinkKey", (uint8_t*)link_key, &size)) {
    396     int linkkey_type;
    397     if (btif_config_get_int(bdstr, "LinkKeyType", &linkkey_type)) {
    398       bt_linkkey_file_found = true;
    399     } else {
    400       bt_linkkey_file_found = false;
    401     }
    402   }
    403   if ((btif_in_fetch_bonded_ble_device(bdstr, false, NULL) !=
    404        BT_STATUS_SUCCESS) &&
    405       (!bt_linkkey_file_found)) {
    406     BTIF_TRACE_DEBUG("Remote device:%s, no link key or ble key found", bdstr);
    407     return BT_STATUS_FAIL;
    408   }
    409   return BT_STATUS_SUCCESS;
    410 }
    411 
    412 /*******************************************************************************
    413  *
    414  * Function         btif_in_fetch_bonded_devices
    415  *
    416  * Description      Internal helper function to fetch the bonded devices
    417  *                  from NVRAM
    418  *
    419  * Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
    420  *
    421  ******************************************************************************/
    422 static bt_status_t btif_in_fetch_bonded_devices(
    423     btif_bonded_devices_t* p_bonded_devices, int add) {
    424   memset(p_bonded_devices, 0, sizeof(btif_bonded_devices_t));
    425 
    426   bool bt_linkkey_file_found = false;
    427   int device_type;
    428 
    429   for (const btif_config_section_iter_t* iter = btif_config_section_begin();
    430        iter != btif_config_section_end();
    431        iter = btif_config_section_next(iter)) {
    432     const char* name = btif_config_section_name(iter);
    433     if (!RawAddress::IsValidAddress(name)) continue;
    434 
    435     BTIF_TRACE_DEBUG("Remote device:%s", name);
    436     LINK_KEY link_key;
    437     size_t size = sizeof(link_key);
    438     if (btif_config_get_bin(name, "LinkKey", link_key, &size)) {
    439       int linkkey_type;
    440       if (btif_config_get_int(name, "LinkKeyType", &linkkey_type)) {
    441         RawAddress bd_addr;
    442         RawAddress::FromString(name, bd_addr);
    443         if (add) {
    444           DEV_CLASS dev_class = {0, 0, 0};
    445           int cod;
    446           int pin_length = 0;
    447           if (btif_config_get_int(name, "DevClass", &cod))
    448             uint2devclass((uint32_t)cod, dev_class);
    449           btif_config_get_int(name, "PinLength", &pin_length);
    450           BTA_DmAddDevice(bd_addr, dev_class, link_key, 0, 0,
    451                           (uint8_t)linkkey_type, 0, pin_length);
    452 
    453           if (btif_config_get_int(name, "DevType", &device_type) &&
    454               (device_type == BT_DEVICE_TYPE_DUMO)) {
    455             btif_gatts_add_bonded_dev_from_nv(bd_addr);
    456           }
    457         }
    458         bt_linkkey_file_found = true;
    459         p_bonded_devices->devices[p_bonded_devices->num_devices++] = bd_addr;
    460       } else {
    461         bt_linkkey_file_found = false;
    462       }
    463     }
    464     if (!btif_in_fetch_bonded_ble_device(name, add, p_bonded_devices) &&
    465         !bt_linkkey_file_found) {
    466       BTIF_TRACE_DEBUG("Remote device:%s, no link key or ble key found", name);
    467     }
    468   }
    469   return BT_STATUS_SUCCESS;
    470 }
    471 
    472 static void btif_read_le_key(const uint8_t key_type, const size_t key_len,
    473                              RawAddress bd_addr, const uint8_t addr_type,
    474                              const bool add_key, bool* device_added,
    475                              bool* key_found) {
    476   CHECK(device_added);
    477   CHECK(key_found);
    478 
    479   char buffer[100];
    480   memset(buffer, 0, sizeof(buffer));
    481 
    482   if (btif_storage_get_ble_bonding_key(&bd_addr, key_type, buffer, key_len) ==
    483       BT_STATUS_SUCCESS) {
    484     if (add_key) {
    485       if (!*device_added) {
    486         BTA_DmAddBleDevice(bd_addr, addr_type, BT_DEVICE_TYPE_BLE);
    487         *device_added = true;
    488       }
    489 
    490       BTIF_TRACE_DEBUG("%s() Adding key type %d for %s", __func__, key_type,
    491                        bd_addr.ToString().c_str());
    492       BTA_DmAddBleKey(bd_addr, (tBTA_LE_KEY_VALUE*)buffer, key_type);
    493     }
    494 
    495     *key_found = true;
    496   }
    497 }
    498 
    499 /*******************************************************************************
    500  * Functions
    501  *
    502  * Functions are synchronous and can be called by both from internal modules
    503  * such as BTIF_DM and by external entiries from HAL via BTIF_context_switch.
    504  * For OUT parameters, the caller is expected to provide the memory.
    505  * Caller is expected to provide a valid pointer to 'property->value' based on
    506  * the property->type.
    507  ******************************************************************************/
    508 
    509 /*******************************************************************************
    510  *
    511  * Function         btif_split_uuids_string
    512  *
    513  * Description      Internal helper function to split the string of UUIDs
    514  *                  read from the NVRAM to an array
    515  *
    516  * Returns          Number of UUIDs parsed from the supplied string
    517  *
    518  ******************************************************************************/
    519 size_t btif_split_uuids_string(const char* str, bt_uuid_t* p_uuid,
    520                                size_t max_uuids) {
    521   CHECK(str);
    522   CHECK(p_uuid);
    523 
    524   size_t num_uuids = 0;
    525   while (str && num_uuids < max_uuids) {
    526     bool rc = string_to_uuid(str, p_uuid++);
    527     if (!rc) break;
    528     num_uuids++;
    529     str = strchr(str, ' ');
    530     if (str) str++;
    531   }
    532 
    533   return num_uuids;
    534 }
    535 
    536 /*******************************************************************************
    537  *
    538  * Function         btif_storage_get_adapter_property
    539  *
    540  * Description      BTIF storage API - Fetches the adapter property->type
    541  *                  from NVRAM and fills property->val.
    542  *                  Caller should provide memory for property->val and
    543  *                  set the property->val
    544  *
    545  * Returns          BT_STATUS_SUCCESS if the fetch was successful,
    546  *                  BT_STATUS_FAIL otherwise
    547  *
    548  ******************************************************************************/
    549 bt_status_t btif_storage_get_adapter_property(bt_property_t* property) {
    550   /* Special handling for adapter address and BONDED_DEVICES */
    551   if (property->type == BT_PROPERTY_BDADDR) {
    552     RawAddress* bd_addr = (RawAddress*)property->val;
    553     /* Fetch the local BD ADDR */
    554     const controller_t* controller = controller_get_interface();
    555     if (controller->get_is_ready() == false) {
    556       LOG_ERROR(LOG_TAG,
    557                 "%s: Controller not ready! Unable to return Bluetooth Address",
    558                 __func__);
    559       *bd_addr = RawAddress::kEmpty;
    560       return BT_STATUS_FAIL;
    561     } else {
    562       LOG_ERROR(LOG_TAG, "%s: Controller ready!", __func__);
    563       *bd_addr = *controller->get_address();
    564     }
    565     property->len = RawAddress::kLength;
    566     return BT_STATUS_SUCCESS;
    567   } else if (property->type == BT_PROPERTY_ADAPTER_BONDED_DEVICES) {
    568     btif_bonded_devices_t bonded_devices;
    569 
    570     btif_in_fetch_bonded_devices(&bonded_devices, 0);
    571 
    572     BTIF_TRACE_DEBUG(
    573         "%s: Number of bonded devices: %d "
    574         "Property:BT_PROPERTY_ADAPTER_BONDED_DEVICES",
    575         __func__, bonded_devices.num_devices);
    576 
    577     if (bonded_devices.num_devices > 0) {
    578       property->len = bonded_devices.num_devices * RawAddress::kLength;
    579       memcpy(property->val, bonded_devices.devices, property->len);
    580     }
    581 
    582     /* if there are no bonded_devices, then length shall be 0 */
    583     return BT_STATUS_SUCCESS;
    584   } else if (property->type == BT_PROPERTY_UUIDS) {
    585     /* publish list of local supported services */
    586     bt_uuid_t* p_uuid = (bt_uuid_t*)property->val;
    587     uint32_t num_uuids = 0;
    588     uint32_t i;
    589 
    590     tBTA_SERVICE_MASK service_mask = btif_get_enabled_services_mask();
    591     LOG_INFO(LOG_TAG, "%s service_mask:0x%x", __func__, service_mask);
    592     for (i = 0; i < BTA_MAX_SERVICE_ID; i++) {
    593       /* This should eventually become a function when more services are enabled
    594        */
    595       if (service_mask & (tBTA_SERVICE_MASK)(1 << i)) {
    596         switch (i) {
    597           case BTA_HFP_SERVICE_ID: {
    598             uuid16_to_uuid128(UUID_SERVCLASS_AG_HANDSFREE, p_uuid + num_uuids);
    599             num_uuids++;
    600           }
    601           /* intentional fall through: Send both BFP & HSP UUIDs if HFP is
    602            * enabled */
    603           case BTA_HSP_SERVICE_ID: {
    604             uuid16_to_uuid128(UUID_SERVCLASS_HEADSET_AUDIO_GATEWAY,
    605                               p_uuid + num_uuids);
    606             num_uuids++;
    607           } break;
    608           case BTA_A2DP_SOURCE_SERVICE_ID: {
    609             uuid16_to_uuid128(UUID_SERVCLASS_AUDIO_SOURCE, p_uuid + num_uuids);
    610             num_uuids++;
    611           } break;
    612           case BTA_A2DP_SINK_SERVICE_ID: {
    613             uuid16_to_uuid128(UUID_SERVCLASS_AUDIO_SINK, p_uuid + num_uuids);
    614             num_uuids++;
    615           } break;
    616           case BTA_HFP_HS_SERVICE_ID: {
    617             uuid16_to_uuid128(UUID_SERVCLASS_HF_HANDSFREE, p_uuid + num_uuids);
    618             num_uuids++;
    619           } break;
    620         }
    621       }
    622     }
    623     property->len = (num_uuids) * sizeof(bt_uuid_t);
    624     return BT_STATUS_SUCCESS;
    625   }
    626 
    627   /* fall through for other properties */
    628   if (!cfg2prop(NULL, property)) {
    629     return btif_dm_get_adapter_property(property);
    630   }
    631   return BT_STATUS_SUCCESS;
    632 }
    633 
    634 /*******************************************************************************
    635  *
    636  * Function         btif_storage_set_adapter_property
    637  *
    638  * Description      BTIF storage API - Stores the adapter property
    639  *                  to NVRAM
    640  *
    641  * Returns          BT_STATUS_SUCCESS if the store was successful,
    642  *                  BT_STATUS_FAIL otherwise
    643  *
    644  ******************************************************************************/
    645 bt_status_t btif_storage_set_adapter_property(bt_property_t* property) {
    646   return prop2cfg(NULL, property) ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
    647 }
    648 
    649 /*******************************************************************************
    650  *
    651  * Function         btif_storage_get_remote_device_property
    652  *
    653  * Description      BTIF storage API - Fetches the remote device property->type
    654  *                  from NVRAM and fills property->val.
    655  *                  Caller should provide memory for property->val and
    656  *                  set the property->val
    657  *
    658  * Returns          BT_STATUS_SUCCESS if the fetch was successful,
    659  *                  BT_STATUS_FAIL otherwise
    660  *
    661  ******************************************************************************/
    662 bt_status_t btif_storage_get_remote_device_property(
    663     const RawAddress* remote_bd_addr, bt_property_t* property) {
    664   return cfg2prop(remote_bd_addr, property) ? BT_STATUS_SUCCESS
    665                                             : BT_STATUS_FAIL;
    666 }
    667 /*******************************************************************************
    668  *
    669  * Function         btif_storage_set_remote_device_property
    670  *
    671  * Description      BTIF storage API - Stores the remote device property
    672  *                  to NVRAM
    673  *
    674  * Returns          BT_STATUS_SUCCESS if the store was successful,
    675  *                  BT_STATUS_FAIL otherwise
    676  *
    677  ******************************************************************************/
    678 bt_status_t btif_storage_set_remote_device_property(
    679     const RawAddress* remote_bd_addr, bt_property_t* property) {
    680   return prop2cfg(remote_bd_addr, property) ? BT_STATUS_SUCCESS
    681                                             : BT_STATUS_FAIL;
    682 }
    683 
    684 /*******************************************************************************
    685  *
    686  * Function         btif_storage_add_remote_device
    687  *
    688  * Description      BTIF storage API - Adds a newly discovered device to NVRAM
    689  *                  along with the timestamp. Also, stores the various
    690  *                  properties - RSSI, BDADDR, NAME (if found in EIR)
    691  *
    692  * Returns          BT_STATUS_SUCCESS if the store was successful,
    693  *                  BT_STATUS_FAIL otherwise
    694  *
    695  ******************************************************************************/
    696 bt_status_t btif_storage_add_remote_device(const RawAddress* remote_bd_addr,
    697                                            uint32_t num_properties,
    698                                            bt_property_t* properties) {
    699   uint32_t i = 0;
    700   /* TODO: If writing a property, fails do we go back undo the earlier
    701    * written properties? */
    702   for (i = 0; i < num_properties; i++) {
    703     /* Ignore the RSSI as this is not stored in DB */
    704     if (properties[i].type == BT_PROPERTY_REMOTE_RSSI) continue;
    705 
    706     /* address for remote device needs special handling as we also store
    707      * timestamp */
    708     if (properties[i].type == BT_PROPERTY_BDADDR) {
    709       bt_property_t addr_prop;
    710       memcpy(&addr_prop, &properties[i], sizeof(bt_property_t));
    711       addr_prop.type = (bt_property_type_t)BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP;
    712       btif_storage_set_remote_device_property(remote_bd_addr, &addr_prop);
    713     } else {
    714       btif_storage_set_remote_device_property(remote_bd_addr, &properties[i]);
    715     }
    716   }
    717   return BT_STATUS_SUCCESS;
    718 }
    719 
    720 /*******************************************************************************
    721  *
    722  * Function         btif_storage_add_bonded_device
    723  *
    724  * Description      BTIF storage API - Adds the newly bonded device to NVRAM
    725  *                  along with the link-key, Key type and Pin key length
    726  *
    727  * Returns          BT_STATUS_SUCCESS if the store was successful,
    728  *                  BT_STATUS_FAIL otherwise
    729  *
    730  ******************************************************************************/
    731 
    732 bt_status_t btif_storage_add_bonded_device(RawAddress* remote_bd_addr,
    733                                            LINK_KEY link_key, uint8_t key_type,
    734                                            uint8_t pin_length) {
    735   std::string addrstr = remote_bd_addr->ToString();
    736   const char* bdstr = addrstr.c_str();
    737   int ret = btif_config_set_int(bdstr, "LinkKeyType", (int)key_type);
    738   ret &= btif_config_set_int(bdstr, "PinLength", (int)pin_length);
    739   ret &= btif_config_set_bin(bdstr, "LinkKey", link_key, sizeof(LINK_KEY));
    740 
    741   if (is_restricted_mode()) {
    742     BTIF_TRACE_WARNING("%s: '%s' pairing will be removed if unrestricted",
    743                        __func__, bdstr);
    744     btif_config_set_int(bdstr, "Restricted", 1);
    745   }
    746 
    747   /* write bonded info immediately */
    748   btif_config_flush();
    749   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
    750 }
    751 
    752 /*******************************************************************************
    753  *
    754  * Function         btif_storage_remove_bonded_device
    755  *
    756  * Description      BTIF storage API - Deletes the bonded device from NVRAM
    757  *
    758  * Returns          BT_STATUS_SUCCESS if the deletion was successful,
    759  *                  BT_STATUS_FAIL otherwise
    760  *
    761  ******************************************************************************/
    762 bt_status_t btif_storage_remove_bonded_device(
    763     const RawAddress* remote_bd_addr) {
    764   std::string addrstr = remote_bd_addr->ToString();
    765   const char* bdstr = addrstr.c_str();
    766   BTIF_TRACE_DEBUG("in bd addr:%s", bdstr);
    767 
    768   btif_storage_remove_ble_bonding_keys(remote_bd_addr);
    769 
    770   int ret = 1;
    771   if (btif_config_exist(bdstr, "LinkKeyType"))
    772     ret &= btif_config_remove(bdstr, "LinkKeyType");
    773   if (btif_config_exist(bdstr, "PinLength"))
    774     ret &= btif_config_remove(bdstr, "PinLength");
    775   if (btif_config_exist(bdstr, "LinkKey"))
    776     ret &= btif_config_remove(bdstr, "LinkKey");
    777   /* write bonded info immediately */
    778   btif_config_flush();
    779   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
    780 }
    781 
    782 /*******************************************************************************
    783  *
    784  * Function         btif_storage_load_bonded_devices
    785  *
    786  * Description      BTIF storage API - Loads all the bonded devices from NVRAM
    787  *                  and adds to the BTA.
    788  *                  Additionally, this API also invokes the adaper_properties_cb
    789  *                  and remote_device_properties_cb for each of the bonded
    790  *                  devices.
    791  *
    792  * Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
    793  *
    794  ******************************************************************************/
    795 bt_status_t btif_storage_load_bonded_devices(void) {
    796   btif_bonded_devices_t bonded_devices;
    797   uint32_t i = 0;
    798   bt_property_t adapter_props[6];
    799   uint32_t num_props = 0;
    800   bt_property_t remote_properties[8];
    801   RawAddress addr;
    802   bt_bdname_t name, alias;
    803   bt_scan_mode_t mode;
    804   uint32_t disc_timeout;
    805   bt_uuid_t local_uuids[BT_MAX_NUM_UUIDS];
    806   bt_uuid_t remote_uuids[BT_MAX_NUM_UUIDS];
    807   bt_status_t status;
    808 
    809   btif_in_fetch_bonded_devices(&bonded_devices, 1);
    810 
    811   /* Now send the adapter_properties_cb with all adapter_properties */
    812   {
    813     memset(adapter_props, 0, sizeof(adapter_props));
    814 
    815     /* address */
    816     BTIF_STORAGE_GET_ADAPTER_PROP(status, BT_PROPERTY_BDADDR, &addr,
    817                                   sizeof(addr), adapter_props[num_props]);
    818     // Add BT_PROPERTY_BDADDR property into list only when successful.
    819     // Otherwise, skip this property entry.
    820     if (status == BT_STATUS_SUCCESS) {
    821       num_props++;
    822     }
    823 
    824     /* BD_NAME */
    825     BTIF_STORAGE_GET_ADAPTER_PROP(status, BT_PROPERTY_BDNAME, &name,
    826                                   sizeof(name), adapter_props[num_props]);
    827     num_props++;
    828 
    829     /* SCAN_MODE */
    830     /* TODO: At the time of BT on, always report the scan mode as 0 irrespective
    831      of the scan_mode during the previous enable cycle.
    832      This needs to be re-visited as part of the app/stack enable sequence
    833      synchronization */
    834     mode = BT_SCAN_MODE_NONE;
    835     adapter_props[num_props].type = BT_PROPERTY_ADAPTER_SCAN_MODE;
    836     adapter_props[num_props].len = sizeof(mode);
    837     adapter_props[num_props].val = &mode;
    838     num_props++;
    839 
    840     /* DISC_TIMEOUT */
    841     BTIF_STORAGE_GET_ADAPTER_PROP(status, BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT,
    842                                   &disc_timeout, sizeof(disc_timeout),
    843                                   adapter_props[num_props]);
    844     num_props++;
    845 
    846     /* BONDED_DEVICES */
    847     RawAddress* devices_list = (RawAddress*)osi_malloc(
    848         sizeof(RawAddress) * bonded_devices.num_devices);
    849     adapter_props[num_props].type = BT_PROPERTY_ADAPTER_BONDED_DEVICES;
    850     adapter_props[num_props].len =
    851         bonded_devices.num_devices * sizeof(RawAddress);
    852     adapter_props[num_props].val = devices_list;
    853     for (i = 0; i < bonded_devices.num_devices; i++) {
    854       devices_list[i] = bonded_devices.devices[i];
    855     }
    856     num_props++;
    857 
    858     /* LOCAL UUIDs */
    859     BTIF_STORAGE_GET_ADAPTER_PROP(status, BT_PROPERTY_UUIDS, local_uuids,
    860                                   sizeof(local_uuids),
    861                                   adapter_props[num_props]);
    862     num_props++;
    863 
    864     btif_adapter_properties_evt(BT_STATUS_SUCCESS, num_props, adapter_props);
    865 
    866     osi_free(devices_list);
    867   }
    868 
    869   BTIF_TRACE_EVENT("%s: %d bonded devices found", __func__,
    870                    bonded_devices.num_devices);
    871 
    872   {
    873     for (i = 0; i < bonded_devices.num_devices; i++) {
    874       RawAddress* p_remote_addr;
    875 
    876       /*
    877        * TODO: improve handling of missing fields in NVRAM.
    878        */
    879       uint32_t cod = 0;
    880       uint32_t devtype = 0;
    881 
    882       num_props = 0;
    883       p_remote_addr = &bonded_devices.devices[i];
    884       memset(remote_properties, 0, sizeof(remote_properties));
    885       BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_BDNAME, &name,
    886                                    sizeof(name), remote_properties[num_props]);
    887       num_props++;
    888 
    889       BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr,
    890                                    BT_PROPERTY_REMOTE_FRIENDLY_NAME, &alias,
    891                                    sizeof(alias), remote_properties[num_props]);
    892       num_props++;
    893 
    894       BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_CLASS_OF_DEVICE,
    895                                    &cod, sizeof(cod),
    896                                    remote_properties[num_props]);
    897       num_props++;
    898 
    899       BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_TYPE_OF_DEVICE,
    900                                    &devtype, sizeof(devtype),
    901                                    remote_properties[num_props]);
    902       num_props++;
    903 
    904       BTIF_STORAGE_GET_REMOTE_PROP(p_remote_addr, BT_PROPERTY_UUIDS,
    905                                    remote_uuids, sizeof(remote_uuids),
    906                                    remote_properties[num_props]);
    907       num_props++;
    908 
    909       btif_remote_properties_evt(BT_STATUS_SUCCESS, p_remote_addr, num_props,
    910                                  remote_properties);
    911     }
    912   }
    913   return BT_STATUS_SUCCESS;
    914 }
    915 
    916 /*******************************************************************************
    917  *
    918  * Function         btif_storage_add_ble_bonding_key
    919  *
    920  * Description      BTIF storage API - Adds the newly bonded device to NVRAM
    921  *                  along with the ble-key, Key type and Pin key length
    922  *
    923  * Returns          BT_STATUS_SUCCESS if the store was successful,
    924  *                  BT_STATUS_FAIL otherwise
    925  *
    926  ******************************************************************************/
    927 
    928 bt_status_t btif_storage_add_ble_bonding_key(RawAddress* remote_bd_addr,
    929                                              char* key, uint8_t key_type,
    930                                              uint8_t key_length) {
    931   const char* name;
    932   switch (key_type) {
    933     case BTIF_DM_LE_KEY_PENC:
    934       name = "LE_KEY_PENC";
    935       break;
    936     case BTIF_DM_LE_KEY_PID:
    937       name = "LE_KEY_PID";
    938       break;
    939     case BTIF_DM_LE_KEY_PCSRK:
    940       name = "LE_KEY_PCSRK";
    941       break;
    942     case BTIF_DM_LE_KEY_LENC:
    943       name = "LE_KEY_LENC";
    944       break;
    945     case BTIF_DM_LE_KEY_LCSRK:
    946       name = "LE_KEY_LCSRK";
    947       break;
    948     case BTIF_DM_LE_KEY_LID:
    949       name = "LE_KEY_LID";
    950       break;
    951     default:
    952       return BT_STATUS_FAIL;
    953   }
    954   int ret = btif_config_set_bin(remote_bd_addr->ToString().c_str(), name,
    955                                 (const uint8_t*)key, key_length);
    956   btif_config_save();
    957   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
    958 }
    959 
    960 /*******************************************************************************
    961  *
    962  * Function         btif_storage_get_ble_bonding_key
    963  *
    964  * Description
    965  *
    966  * Returns          BT_STATUS_SUCCESS if the fetch was successful,
    967  *                  BT_STATUS_FAIL otherwise
    968  *
    969  ******************************************************************************/
    970 bt_status_t btif_storage_get_ble_bonding_key(RawAddress* remote_bd_addr,
    971                                              uint8_t key_type, char* key_value,
    972                                              int key_length) {
    973   const char* name;
    974   switch (key_type) {
    975     case BTIF_DM_LE_KEY_PENC:
    976       name = "LE_KEY_PENC";
    977       break;
    978     case BTIF_DM_LE_KEY_PID:
    979       name = "LE_KEY_PID";
    980       break;
    981     case BTIF_DM_LE_KEY_PCSRK:
    982       name = "LE_KEY_PCSRK";
    983       break;
    984     case BTIF_DM_LE_KEY_LENC:
    985       name = "LE_KEY_LENC";
    986       break;
    987     case BTIF_DM_LE_KEY_LCSRK:
    988       name = "LE_KEY_LCSRK";
    989       break;
    990     case BTIF_DM_LE_KEY_LID:
    991       name = "LE_KEY_LID";
    992     default:
    993       return BT_STATUS_FAIL;
    994   }
    995   size_t length = key_length;
    996   int ret = btif_config_get_bin(remote_bd_addr->ToString().c_str(), name,
    997                                 (uint8_t*)key_value, &length);
    998   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
    999 }
   1000 
   1001 /*******************************************************************************
   1002  *
   1003  * Function         btif_storage_remove_ble_keys
   1004  *
   1005  * Description      BTIF storage API - Deletes the bonded device from NVRAM
   1006  *
   1007  * Returns          BT_STATUS_SUCCESS if the deletion was successful,
   1008  *                  BT_STATUS_FAIL otherwise
   1009  *
   1010  ******************************************************************************/
   1011 bt_status_t btif_storage_remove_ble_bonding_keys(
   1012     const RawAddress* remote_bd_addr) {
   1013   std::string addrstr = remote_bd_addr->ToString();
   1014   const char* bdstr = addrstr.c_str();
   1015   BTIF_TRACE_DEBUG(" %s in bd addr:%s", __func__, bdstr);
   1016   int ret = 1;
   1017   if (btif_config_exist(bdstr, "LE_KEY_PENC"))
   1018     ret &= btif_config_remove(bdstr, "LE_KEY_PENC");
   1019   if (btif_config_exist(bdstr, "LE_KEY_PID"))
   1020     ret &= btif_config_remove(bdstr, "LE_KEY_PID");
   1021   if (btif_config_exist(bdstr, "LE_KEY_PCSRK"))
   1022     ret &= btif_config_remove(bdstr, "LE_KEY_PCSRK");
   1023   if (btif_config_exist(bdstr, "LE_KEY_LENC"))
   1024     ret &= btif_config_remove(bdstr, "LE_KEY_LENC");
   1025   if (btif_config_exist(bdstr, "LE_KEY_LCSRK"))
   1026     ret &= btif_config_remove(bdstr, "LE_KEY_LCSRK");
   1027   btif_config_save();
   1028   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
   1029 }
   1030 
   1031 /*******************************************************************************
   1032  *
   1033  * Function         btif_storage_add_ble_local_key
   1034  *
   1035  * Description      BTIF storage API - Adds the ble key to NVRAM
   1036  *
   1037  * Returns          BT_STATUS_SUCCESS if the store was successful,
   1038  *                  BT_STATUS_FAIL otherwise
   1039  *
   1040  ******************************************************************************/
   1041 bt_status_t btif_storage_add_ble_local_key(char* key, uint8_t key_type,
   1042                                            uint8_t key_length) {
   1043   const char* name;
   1044   switch (key_type) {
   1045     case BTIF_DM_LE_LOCAL_KEY_IR:
   1046       name = "LE_LOCAL_KEY_IR";
   1047       break;
   1048     case BTIF_DM_LE_LOCAL_KEY_IRK:
   1049       name = "LE_LOCAL_KEY_IRK";
   1050       break;
   1051     case BTIF_DM_LE_LOCAL_KEY_DHK:
   1052       name = "LE_LOCAL_KEY_DHK";
   1053       break;
   1054     case BTIF_DM_LE_LOCAL_KEY_ER:
   1055       name = "LE_LOCAL_KEY_ER";
   1056       break;
   1057     default:
   1058       return BT_STATUS_FAIL;
   1059   }
   1060   int ret =
   1061       btif_config_set_bin("Adapter", name, (const uint8_t*)key, key_length);
   1062   btif_config_save();
   1063   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
   1064 }
   1065 
   1066 /*******************************************************************************
   1067  *
   1068  * Function         btif_storage_get_ble_local_key
   1069  *
   1070  * Description
   1071  *
   1072  * Returns          BT_STATUS_SUCCESS if the fetch was successful,
   1073  *                  BT_STATUS_FAIL otherwise
   1074  *
   1075  ******************************************************************************/
   1076 bt_status_t btif_storage_get_ble_local_key(uint8_t key_type, char* key_value,
   1077                                            int key_length) {
   1078   const char* name;
   1079   switch (key_type) {
   1080     case BTIF_DM_LE_LOCAL_KEY_IR:
   1081       name = "LE_LOCAL_KEY_IR";
   1082       break;
   1083     case BTIF_DM_LE_LOCAL_KEY_IRK:
   1084       name = "LE_LOCAL_KEY_IRK";
   1085       break;
   1086     case BTIF_DM_LE_LOCAL_KEY_DHK:
   1087       name = "LE_LOCAL_KEY_DHK";
   1088       break;
   1089     case BTIF_DM_LE_LOCAL_KEY_ER:
   1090       name = "LE_LOCAL_KEY_ER";
   1091       break;
   1092     default:
   1093       return BT_STATUS_FAIL;
   1094   }
   1095   size_t length = key_length;
   1096   int ret = btif_config_get_bin("Adapter", name, (uint8_t*)key_value, &length);
   1097   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
   1098 }
   1099 
   1100 /*******************************************************************************
   1101  *
   1102  * Function         btif_storage_remove_ble_local_keys
   1103  *
   1104  * Description      BTIF storage API - Deletes the bonded device from NVRAM
   1105  *
   1106  * Returns          BT_STATUS_SUCCESS if the deletion was successful,
   1107  *                  BT_STATUS_FAIL otherwise
   1108  *
   1109  ******************************************************************************/
   1110 bt_status_t btif_storage_remove_ble_local_keys(void) {
   1111   int ret = 1;
   1112   if (btif_config_exist("Adapter", "LE_LOCAL_KEY_IR"))
   1113     ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_IR");
   1114   if (btif_config_exist("Adapter", "LE_LOCAL_KEY_IRK"))
   1115     ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_IRK");
   1116   if (btif_config_exist("Adapter", "LE_LOCAL_KEY_DHK"))
   1117     ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_DHK");
   1118   if (btif_config_exist("Adapter", "LE_LOCAL_KEY_ER"))
   1119     ret &= btif_config_remove("Adapter", "LE_LOCAL_KEY_ER");
   1120   btif_config_save();
   1121   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
   1122 }
   1123 
   1124 static bt_status_t btif_in_fetch_bonded_ble_device(
   1125     const char* remote_bd_addr, int add,
   1126     btif_bonded_devices_t* p_bonded_devices) {
   1127   int device_type;
   1128   int addr_type;
   1129   bool device_added = false;
   1130   bool key_found = false;
   1131 
   1132   if (!btif_config_get_int(remote_bd_addr, "DevType", &device_type))
   1133     return BT_STATUS_FAIL;
   1134 
   1135   if ((device_type & BT_DEVICE_TYPE_BLE) == BT_DEVICE_TYPE_BLE ||
   1136       btif_has_ble_keys(remote_bd_addr)) {
   1137     BTIF_TRACE_DEBUG("%s Found a LE device: %s", __func__, remote_bd_addr);
   1138 
   1139     RawAddress bd_addr;
   1140     RawAddress::FromString(remote_bd_addr, bd_addr);
   1141 
   1142     if (btif_storage_get_remote_addr_type(&bd_addr, &addr_type) !=
   1143         BT_STATUS_SUCCESS) {
   1144       addr_type = BLE_ADDR_PUBLIC;
   1145       btif_storage_set_remote_addr_type(&bd_addr, BLE_ADDR_PUBLIC);
   1146     }
   1147 
   1148     btif_read_le_key(BTIF_DM_LE_KEY_PENC, sizeof(tBTM_LE_PENC_KEYS), bd_addr,
   1149                      addr_type, add, &device_added, &key_found);
   1150 
   1151     btif_read_le_key(BTIF_DM_LE_KEY_PID, sizeof(tBTM_LE_PID_KEYS), bd_addr,
   1152                      addr_type, add, &device_added, &key_found);
   1153 
   1154     btif_read_le_key(BTIF_DM_LE_KEY_LID, sizeof(tBTM_LE_PID_KEYS), bd_addr,
   1155                      addr_type, add, &device_added, &key_found);
   1156 
   1157     btif_read_le_key(BTIF_DM_LE_KEY_PCSRK, sizeof(tBTM_LE_PCSRK_KEYS), bd_addr,
   1158                      addr_type, add, &device_added, &key_found);
   1159 
   1160     btif_read_le_key(BTIF_DM_LE_KEY_LENC, sizeof(tBTM_LE_LENC_KEYS), bd_addr,
   1161                      addr_type, add, &device_added, &key_found);
   1162 
   1163     btif_read_le_key(BTIF_DM_LE_KEY_LCSRK, sizeof(tBTM_LE_LCSRK_KEYS), bd_addr,
   1164                      addr_type, add, &device_added, &key_found);
   1165 
   1166     // Fill in the bonded devices
   1167     if (device_added) {
   1168       p_bonded_devices->devices[p_bonded_devices->num_devices++] = bd_addr;
   1169       btif_gatts_add_bonded_dev_from_nv(bd_addr);
   1170     }
   1171 
   1172     if (key_found) return BT_STATUS_SUCCESS;
   1173   }
   1174   return BT_STATUS_FAIL;
   1175 }
   1176 
   1177 bt_status_t btif_storage_set_remote_addr_type(const RawAddress* remote_bd_addr,
   1178                                               uint8_t addr_type) {
   1179   int ret = btif_config_set_int(remote_bd_addr->ToString().c_str(), "AddrType",
   1180                                 (int)addr_type);
   1181   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
   1182 }
   1183 
   1184 bool btif_has_ble_keys(const char* bdstr) {
   1185   return btif_config_exist(bdstr, "LE_KEY_PENC");
   1186 }
   1187 
   1188 /*******************************************************************************
   1189  *
   1190  * Function         btif_storage_get_remote_addr_type
   1191  *
   1192  * Description      BTIF storage API - Fetches the remote addr type
   1193  *
   1194  * Returns          BT_STATUS_SUCCESS if the fetch was successful,
   1195  *                  BT_STATUS_FAIL otherwise
   1196  *
   1197  ******************************************************************************/
   1198 bt_status_t btif_storage_get_remote_addr_type(const RawAddress* remote_bd_addr,
   1199                                               int* addr_type) {
   1200   int ret = btif_config_get_int(remote_bd_addr->ToString().c_str(), "AddrType",
   1201                                 addr_type);
   1202   return ret ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
   1203 }
   1204 /*******************************************************************************
   1205  *
   1206  * Function         btif_storage_add_hid_device_info
   1207  *
   1208  * Description      BTIF storage API - Adds the hid information of bonded hid
   1209  *                  devices-to NVRAM
   1210  *
   1211  * Returns          BT_STATUS_SUCCESS if the store was successful,
   1212  *                  BT_STATUS_FAIL otherwise
   1213  *
   1214  ******************************************************************************/
   1215 
   1216 bt_status_t btif_storage_add_hid_device_info(
   1217     RawAddress* remote_bd_addr, uint16_t attr_mask, uint8_t sub_class,
   1218     uint8_t app_id, uint16_t vendor_id, uint16_t product_id, uint16_t version,
   1219     uint8_t ctry_code, uint16_t ssr_max_latency, uint16_t ssr_min_tout,
   1220     uint16_t dl_len, uint8_t* dsc_list) {
   1221   BTIF_TRACE_DEBUG("btif_storage_add_hid_device_info:");
   1222   std::string addrstr = remote_bd_addr->ToString();
   1223   const char* bdstr = addrstr.c_str();
   1224   btif_config_set_int(bdstr, "HidAttrMask", attr_mask);
   1225   btif_config_set_int(bdstr, "HidSubClass", sub_class);
   1226   btif_config_set_int(bdstr, "HidAppId", app_id);
   1227   btif_config_set_int(bdstr, "HidVendorId", vendor_id);
   1228   btif_config_set_int(bdstr, "HidProductId", product_id);
   1229   btif_config_set_int(bdstr, "HidVersion", version);
   1230   btif_config_set_int(bdstr, "HidCountryCode", ctry_code);
   1231   btif_config_set_int(bdstr, "HidSSRMaxLatency", ssr_max_latency);
   1232   btif_config_set_int(bdstr, "HidSSRMinTimeout", ssr_min_tout);
   1233   if (dl_len > 0) btif_config_set_bin(bdstr, "HidDescriptor", dsc_list, dl_len);
   1234   btif_config_save();
   1235   return BT_STATUS_SUCCESS;
   1236 }
   1237 
   1238 /*******************************************************************************
   1239  *
   1240  * Function         btif_storage_load_bonded_hid_info
   1241  *
   1242  * Description      BTIF storage API - Loads hid info for all the bonded devices
   1243  *                  from NVRAM and adds those devices  to the BTA_HH.
   1244  *
   1245  * Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
   1246  *
   1247  ******************************************************************************/
   1248 bt_status_t btif_storage_load_bonded_hid_info(void) {
   1249   RawAddress bd_addr;
   1250   tBTA_HH_DEV_DSCP_INFO dscp_info;
   1251   uint16_t attr_mask;
   1252   uint8_t sub_class;
   1253   uint8_t app_id;
   1254 
   1255   memset(&dscp_info, 0, sizeof(dscp_info));
   1256   for (const btif_config_section_iter_t* iter = btif_config_section_begin();
   1257        iter != btif_config_section_end();
   1258        iter = btif_config_section_next(iter)) {
   1259     const char* name = btif_config_section_name(iter);
   1260     if (!RawAddress::IsValidAddress(name)) continue;
   1261 
   1262     BTIF_TRACE_DEBUG("Remote device:%s", name);
   1263     int value;
   1264     if (btif_in_fetch_bonded_device(name) == BT_STATUS_SUCCESS) {
   1265       if (btif_config_get_int(name, "HidAttrMask", &value)) {
   1266         attr_mask = (uint16_t)value;
   1267 
   1268         btif_config_get_int(name, "HidSubClass", &value);
   1269         sub_class = (uint8_t)value;
   1270 
   1271         btif_config_get_int(name, "HidAppId", &value);
   1272         app_id = (uint8_t)value;
   1273 
   1274         btif_config_get_int(name, "HidVendorId", &value);
   1275         dscp_info.vendor_id = (uint16_t)value;
   1276 
   1277         btif_config_get_int(name, "HidProductId", &value);
   1278         dscp_info.product_id = (uint16_t)value;
   1279 
   1280         btif_config_get_int(name, "HidVersion", &value);
   1281         dscp_info.version = (uint8_t)value;
   1282 
   1283         btif_config_get_int(name, "HidCountryCode", &value);
   1284         dscp_info.ctry_code = (uint8_t)value;
   1285 
   1286         value = 0;
   1287         btif_config_get_int(name, "HidSSRMaxLatency", &value);
   1288         dscp_info.ssr_max_latency = (uint16_t)value;
   1289 
   1290         value = 0;
   1291         btif_config_get_int(name, "HidSSRMinTimeout", &value);
   1292         dscp_info.ssr_min_tout = (uint16_t)value;
   1293 
   1294         size_t len = btif_config_get_bin_length(name, "HidDescriptor");
   1295         if (len > 0) {
   1296           dscp_info.descriptor.dl_len = (uint16_t)len;
   1297           dscp_info.descriptor.dsc_list = (uint8_t*)alloca(len);
   1298           btif_config_get_bin(name, "HidDescriptor",
   1299                               (uint8_t*)dscp_info.descriptor.dsc_list, &len);
   1300         }
   1301         RawAddress::FromString(name, bd_addr);
   1302         // add extracted information to BTA HH
   1303         if (btif_hh_add_added_dev(bd_addr, attr_mask)) {
   1304           BTA_HhAddDev(bd_addr, attr_mask, sub_class, app_id, dscp_info);
   1305         }
   1306       }
   1307     } else {
   1308       if (btif_config_get_int(name, "HidAttrMask", &value)) {
   1309         btif_storage_remove_hid_info(&bd_addr);
   1310         RawAddress::FromString(name, bd_addr);
   1311       }
   1312     }
   1313   }
   1314 
   1315   return BT_STATUS_SUCCESS;
   1316 }
   1317 
   1318 /*******************************************************************************
   1319  *
   1320  * Function         btif_storage_remove_hid_info
   1321  *
   1322  * Description      BTIF storage API - Deletes the bonded hid device info from
   1323  *                  NVRAM
   1324  *
   1325  * Returns          BT_STATUS_SUCCESS if the deletion was successful,
   1326  *                  BT_STATUS_FAIL otherwise
   1327  *
   1328  ******************************************************************************/
   1329 bt_status_t btif_storage_remove_hid_info(RawAddress* remote_bd_addr) {
   1330   std::string addrstr = remote_bd_addr->ToString();
   1331   const char* bdstr = addrstr.c_str();
   1332 
   1333   btif_config_remove(bdstr, "HidAttrMask");
   1334   btif_config_remove(bdstr, "HidSubClass");
   1335   btif_config_remove(bdstr, "HidAppId");
   1336   btif_config_remove(bdstr, "HidVendorId");
   1337   btif_config_remove(bdstr, "HidProductId");
   1338   btif_config_remove(bdstr, "HidVersion");
   1339   btif_config_remove(bdstr, "HidCountryCode");
   1340   btif_config_remove(bdstr, "HidSSRMaxLatency");
   1341   btif_config_remove(bdstr, "HidSSRMinTimeout");
   1342   btif_config_remove(bdstr, "HidDescriptor");
   1343   btif_config_save();
   1344   return BT_STATUS_SUCCESS;
   1345 }
   1346 
   1347 /*******************************************************************************
   1348  *
   1349  * Function         btif_storage_is_restricted_device
   1350  *
   1351  * Description      BTIF storage API - checks if this device is a restricted
   1352  *                  device
   1353  *
   1354  * Returns          true  if the device is labeled as restricted
   1355  *                  false otherwise
   1356  *
   1357  ******************************************************************************/
   1358 bool btif_storage_is_restricted_device(const RawAddress* remote_bd_addr) {
   1359   return btif_config_exist(remote_bd_addr->ToString().c_str(), "Restricted");
   1360 }
   1361 
   1362 /*******************************************************************************
   1363  * Function         btif_storage_load_hidd
   1364  *
   1365  * Description      Loads hidd bonded device and "plugs" it into hidd
   1366  *
   1367  * Returns          BT_STATUS_SUCCESS if successful, BT_STATUS_FAIL otherwise
   1368  *
   1369  ******************************************************************************/
   1370 bt_status_t btif_storage_load_hidd(void) {
   1371 
   1372   for (const btif_config_section_iter_t* iter = btif_config_section_begin();
   1373        iter != btif_config_section_end();
   1374        iter = btif_config_section_next(iter)) {
   1375     const char* name = btif_config_section_name(iter);
   1376     if (!RawAddress::IsValidAddress(name)) continue;
   1377 
   1378     BTIF_TRACE_DEBUG("Remote device:%s", name);
   1379     int value;
   1380     if (btif_in_fetch_bonded_device(name) == BT_STATUS_SUCCESS) {
   1381       if (btif_config_get_int(name, "HidDeviceCabled", &value)) {
   1382         RawAddress bd_addr;
   1383         RawAddress::FromString(name, bd_addr);
   1384         BTA_HdAddDevice(bd_addr);
   1385         break;
   1386       }
   1387     }
   1388   }
   1389 
   1390   return BT_STATUS_SUCCESS;
   1391 }
   1392 
   1393 /*******************************************************************************
   1394  *
   1395  * Function         btif_storage_set_hidd
   1396  *
   1397  * Description      Stores hidd bonded device info in nvram.
   1398  *
   1399  * Returns          BT_STATUS_SUCCESS
   1400  *
   1401  ******************************************************************************/
   1402 bt_status_t btif_storage_set_hidd(RawAddress* remote_bd_addr) {
   1403   btif_config_set_int(remote_bd_addr->ToString().c_str(), "HidDeviceCabled", 1);
   1404   btif_config_save();
   1405   return BT_STATUS_SUCCESS;
   1406 }
   1407 
   1408 /*******************************************************************************
   1409  *
   1410  * Function         btif_storage_remove_hidd
   1411  *
   1412  * Description      Removes hidd bonded device info from nvram
   1413  *
   1414  * Returns          BT_STATUS_SUCCESS
   1415  *
   1416  ******************************************************************************/
   1417 bt_status_t btif_storage_remove_hidd(RawAddress* remote_bd_addr) {
   1418   btif_config_remove(remote_bd_addr->ToString().c_str(), "HidDeviceCabled");
   1419   btif_config_save();
   1420 
   1421   return BT_STATUS_SUCCESS;
   1422 }
   1423 
   1424 // Get the name of a device from btif for interop database matching.
   1425 bool btif_storage_get_stored_remote_name(const RawAddress& bd_addr,
   1426                                          char* name) {
   1427   bt_property_t property;
   1428   property.type = BT_PROPERTY_BDNAME;
   1429   property.len = BTM_MAX_REM_BD_NAME_LEN;
   1430   property.val = name;
   1431 
   1432   return (btif_storage_get_remote_device_property(&bd_addr, &property) ==
   1433           BT_STATUS_SUCCESS);
   1434 }
   1435